tests for custom keywords, remove constant (alias of const)

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "spec/JSON-Schema-Test-Suite"]
 	path = spec/JSON-Schema-Test-Suite
 	url = https://github.com/json-schema/JSON-Schema-Test-Suite.git
+[submodule "spec/ajv-keywords"]
+	path = spec/ajv-keywords
+	url = https://github.com/epoberezkin/ajv-keywords.git

messages/index.js

@@ -597,21 +597,6 @@ module.exports = {
     sv: 'bör vara en konstant',
     zh: '应当等于常量'
   },
-  constant: {
-    en: 'should be equal to constant',
-    ar: 'يجب أن يكون غير ثاباً',
-    cz: 'musí být konstantní',
-    de: 'sollte der Konstante entsprechen',
-    es: 'debe ser igual a la constante',
-    fr: 'doit être égal à la constante',
-    nb: 'må være lik konstanten',
-    pl: 'powinien być równy stałej',
-    'pt-BR': 'deve ser igual à constante',
-    ru: 'должно быть равно заданному значению',
-    sk: 'musí byť konštanta',
-    sv: 'bör vara en konstant',
-    zh: '应当等于常量'
-  },
   contains: {
     en: 'should contain a valid item',
     ar: 'يجب أن يحوي عنصرا صحيح',

spec/localize.spec.js

@@ -16,7 +16,6 @@ var remoteRefs = {
 
 var SKIP = {
   'draft-04': ['optional/zeroTerminatedFloats'],
-  'draft-06': [],
   'draft-07': [
     'format/idn-email',
     'format/idn-hostname',
@@ -26,6 +25,11 @@ var SKIP = {
   ]
 };
 
+var DEFAULT_META = {
+  'draft-04': 'http://json-schema.org/draft-04/schema#',
+  'draft-06': 'http://json-schema.org/draft-06/schema#'
+};
+
 var suites = testSuites();
 for (var s in suites) runTests(s);
 
@@ -39,8 +43,8 @@ function runTests(suite) {
 
   instances.forEach(function (ajv) {
     addRemoteRefs(ajv);
-    if (suite != 'draft-07')
-      ajv._opts.defaultMeta = 'http://json-schema.org/' + suite + '/schema#';
+    if (DEFAULT_META[suite])
+      ajv._opts.defaultMeta = DEFAULT_META[suite];
   });
 
   var tests = {};
@@ -72,7 +76,6 @@ function getAjv(allErrors, verbose) {
   ajv.addMetaSchema(require('ajv/lib/refs/json-schema-draft-04.json'));
   ajv.addMetaSchema(require('ajv/lib/refs/json-schema-draft-06.json'));
   ajvKeywords(ajv, ['switch', 'patternRequired', 'formatMinimum', 'formatMaximum']);
-  ajv.addKeyword('constant', { macro: function(x) { return { const: x }; } });
   return ajv;
 }
 
@@ -96,7 +99,8 @@ function testSuites() {
     _suites = {
       'draft-04': './JSON-Schema-Test-Suite/tests/draft4/{**/,}*.json',
       'draft-06': './JSON-Schema-Test-Suite/tests/draft6/{**/,}*.json',
-      'draft-07': './JSON-Schema-Test-Suite/tests/draft7/{**/,}*.json'
+      'draft-07': './JSON-Schema-Test-Suite/tests/draft7/{**/,}*.json',
+      'ajv-keywords': './ajv-keywords/spec/tests/{format*,patternRequired,switch}.json'
     };
   }
   return _suites;